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If you were travelling Upper Class with Virgin Atlantic from Heathrow this spring, you might have been checked in by staff wearing Google Glass. The airline says it was trialling Glass as an “innovative pilot scheme”. “Trial” may be an overstatement, as Glass is nowhere near ready to go mainstream: it is probably more accurate to say that this was a stunt to raise brand awareness – something Virgin is very good at.

Glass is probably the most visible and best-known of the current crop of “wearables” – which include smartwatches, biometrics monitoring devices and wearable cameras – which is quite an achievement for Google, given that it is available only to a small coterie of early adopters who have been prepared to shell out $1,500 for the privilege of being beta testers and walking adverts for Google.

Glass has had a lot of coverage since it was launched last year – not all of it gushing. The most common epithet for the self-conscious tech pioneers who wear them in the wild is “Glasshole”.

While Glass has attracted attention, wearables are not taking off. They are a classic example of businesses trying to create a market where none exists. Apple got away with it by kick-starting the tablet market with the iPad, but whether anyone else will be able to pull off the same trick with wearables remains to be seen. There are two reasons for this: nobody seems to need them. As Carolina Milanesi, chief of research at Kantar Worldpanel, the research company, politely puts it: “The value proposition of wearables is unclear to consumers.”

So, wearables are really devices manufacturers hope we will purchase because they need us to buy more gadgets as smartphones cease to be cool and increasingly become unexciting commodity devices.

“Wearables started as a need for the vendors – not the consumers,” Milanesi says. “As with tablets, they’re pushing them to see if they can make up for lost revenue.”

Mike Bell, vice-president and general manager of new devices for Intel, echoes Milanesi when he says that “part of what we’re trying to do is help create the market”. Intel of course has a very big interest in wearables if their developers can be persuaded to use Intel’s chips. To that end, Intel is busy hooking up with unlikely bedfellows in the fashion industry. Which brings me to the second reason: most look dire, others ridiculous.

It is striking that the only wearables that have found a foothold are unobtrusive fitness wristbands such as the Fitbit, Nike’s Fuelband and the Sony Smartband. A report from consultancy Endeavour Partners this year said that one in 10 US consumers over 18 now owns a fitness-tracking device.

Such devices are at least useful and low-key. By contrast, smartwatches are chunky, prone to run out of juice and tethered to your smartphone.

Samsung, which dominates the smartphone market, stumbled badly with its first attempt at a smartwatch, the Galaxy Gear, eventually given away for free with the Samsung Galaxy Note 3. Even this could not entice people to wear them – eBay has seen a surge in the devices being offered for sale.

For a device to win hearts – and wallets – it must find a place in people’s lives and cultures. At present, wearables are jarring rather than something people want to embrace. You do not have to look hard to find stories of bars banning Glass and concerns about privacy. Milanesi puts her finger on that unease when she says that “you are subjecting others to something you’ve chosen” with Glass and similar devices.

Calling time: Will.i.am uses his smartwatch on 'The Voice' television show

And in many cases, wearables are just plain flaky. At the end of March, owners of Pebble smartwatches found themselves wearing just a rather expensive watch when an update temporarily robbed the devices of all functionality except telling the time. The following weekend, the musician Will.i.am – who moonlights as Intel’s “director of creative innovation” – demonstrated to a live audience that a smartwatch can make you look daft when his attempt to call Cheryl Cole during the final of the BBC’s The Voice talent show using his own self-branded smartwatch did not go as planned.

Wearables need to be useful, beautiful, reliable and not make their user look like an idiot. But for now, they mostly seem to be about manufacturers trying to wring more money out of bored consumers who have yet to be convinced that a wearable is a must-have.

App-grade: tools for maintenance, organisation and fun

CCleaner, Android (free)

This old faithful PC tool has just arrived on Android, where it is just as useful: it will clear your cache, call logs and browsing history and uninstall apps, freeing up a surprising amount of space – I managed to get rid of 116MB from the Chrome browser on my Nexus 10 tablet. The catch is that is still in beta, so you need to join the beta programme – you will find the link for that on the developer Piriform’s Android CCleaner page – before you can install it. More functionality will be coming soon.

Fantastical, iOS (£6.99)

A vast improvement on the native iOS calendar, this app has a thoughtful design that makes the most of the iPad’s screen and leverages how you use the device: things such as a thumb swipe bring up reminders and search. It looks a bit overwhelming at first, but once you get the hang of it, the three elements of the calendar – the day ticker, which you can expand for a more detailed view, the scrolling list and the monthly calendar – are incredibly useful. And there is an iPhone version, too.

2048, all platforms

This fiendish game looks very simple: you slide tiles around on a four-by-four grid and combine them to double their value, and you win when you create a tile with the face value of 2048. In fact it is ridiculously hard, and infuriatingly compelling. 2048 was created by Gabriele Cirulli and takes the best bits of the equally popular Threes! to create a game that’s both more simple and more elegant. There are myriad versions in all the app stores, including a Doctor Who version.